The researchers wanted to see how effective plant powders from Bauhinia variegata and Croton sparsiflorus were in killing Aedes albopictus L., Anopheles stephensi L., and Culex quinquefasciatus Say larvae in the fourth instar. Plant derivatives can be used as low-cost, ecologically acceptable bio insecticides since they are packed with active compounds with remarkable mosquitocidal qualities. The macerated leaf powders of B. variegata and C. sparsiflorus were evaluated against different mosquito species for up to 24 hours at doses of 100, 120, 140, 160, 180, and 200 mg/100 mL tapwater against distinct mosquito species. Against A. albopictus, A. stephensi, and C. quinquefasciatus Say, the LC50 values of C. sparsiflorus leaf powder were 136.43, 150.53, and 163.74 mg/100 mL, respectively. LC50 values for B. variegata leaf powder against A. albopictus, A. stephensi, and C. quinquefasciatus Say were 133.27, 124.99, and 135.34 mg/100 mL, respectively. The current study clearly shows that against several mosquito species, C. sparsiflorus showed 100% mortality, followed by B. variegata. With more isolation and identification of bioactive compounds from B. variegata and C. sparsiflorus, a novel bio insecticide against mosquitoes and other insect pests can be studied and created.
Author(S) Details
Krishnan Raguvaran
Entomology Laboratory, Department of Zoology, School of Life Sciences,
Periyar University, Salem, Tamil Nadu, India.
Entomology Laboratory, Department of Zoology, School of Life Sciences, Periyar University, Salem, Tamil Nadu, India.
View Book:- https://stm.bookpi.org/NVBS-V4/article/view/4301
No comments:
Post a Comment